Merge branch 'jk/rebase-interative-eval-fix' into maint

Portability enhancement for "rebase -i" to help platforms whose
shell does not like "for i in <empty>" (which is not POSIX-kosher).

* jk/rebase-interative-eval-fix:
  rebase--interactive: avoid empty list in shell for-loop

git-rebase--interactive.sh

@@ -82,6 +82,7 @@ rewritten_pending="$state_dir"/rewritten-pending
 cr=$(printf "\015")
 
 strategy_args=${strategy:+--strategy=$strategy}
+test -n "$strategy_opts" &&
 eval '
 	for strategy_opt in '"$strategy_opts"'
 	do